Linux Lite Updates list is empty

[Şerban S.]

Had some updates on spare machine so ran it. Still a blank window, left it sit for 15 minutes and still blank.I am with Shaw cable and not too bad for speed.The progress window shows what is being updated while it is running and the LL updates log shows what was updated.I don't know if this issue with the blank updates window was there from the install or after some updates.Oh well, no big deal just another of life's mysteries.Thanks for a great operating system and all the help.

I've been thinking a lot about this weird outcome.
The only situation I encountered, was while I was programming. The problem resides in a gap that might appear on some systems that are built "on a shoe string", so to speak. If the resources are too low compared to the current workload, the video especially when it has shared RAM, will max the GPU.
What I suggest is start System Monitoring Center and watch the GPU load while using the graphic update tool.
I suspect that either the video driver is working poor or the amount of RAM assigned to the video is a little too low.
In applications that make intensive use of video, like showing a graphic control that is dynamically populated and constantly changes, the video load is quite high.
Since after each change a "Control.Refresh" event is triggered in order to show the content appropriately. The type of control might be different, depending on a certain situation. Can be Window, ListBox, ComboBox, TreeView, etc.
The "Refresh" event is actually a method (procedure, function) that redraws the Control that invokes "Refresh".
In our case, the Edit Control is redrawn each time a new element is added while parsing the updates list.
It is possible that the GPU is overloaded and in this case, the Control.Refresh gets significantly delayed or might even be skipped.
This leads to the blank window. In fact, it is the Edit Control that is entirely missing.

Have you noticed any artifacts on the screen from time to time? This is a good way to narrow the possibilities.
Beyond that, it's too difficult to get to a sound explanation, thus, to find a solution.

In case the problem is the video, the only approach is to enter the MB Firmware (BIOS, UEFI) and change the video memory setting, if available. If it is available, and has a fixed value, that means that the amount of RAM is too low for another setting. A RAM upgrade will unlock the settings, if this upgrade is possible.
I forgot the type of machine you have, but you can go on the path

Code:

inxi -c 0 -ACdGMNSz

The result will tell you all you need to know in order to see if anything is doable.

Best regards, Șerban.